Nodes

A system of exercise using the weight of the body and specific apparatus to promote strength and grace of carriage.

A monosynaptic reflex elicited by stimulating a nerve, particularly the tibial nerve, with an electric shock.

Color of hair or fur.

The time it takes for a substance (drug, radioactive nuclide, or other) to lose half of its pharmacologic, physiologic, or radiologic activity.

Covalent attachment of HALOGENS to other compounds.

Force exerted when gripping or grasping.

The chromosomal constitution of cells, in which each type of CHROMOSOME is represented once. Symbol: N.

A copy number variation that results in reduced GENE DOSAGE due to any loss-of-function mutation. The loss of heterozygosity is associated with abnor…

The genetic constitution of individuals with respect to one member of a pair of allelic genes, or sets of genes that are closely linked and tend to b…

The mechanical property of material that determines its resistance to force. HARDNESS TESTS measure this property.

An algal bloom where the algae produce powerful toxins that can kill fish, birds, and mammals, and ultimately cause illness in humans. The harmful bl…

Voluntary or involuntary motion of head that may be relative to or independent of body; includes animals and humans.

Posture while lying with the head lower than the rest of the body. Extended time in this position is associated with temporary physiologic disturbanc…

The number of times the HEART VENTRICLES contract per unit of time, usually per minute.

The heart rate of the FETUS. The normal range at term is between 120 and 160 beats per minute.

The sounds heard over the cardiac region produced by the functioning of the heart. There are four distinct sounds: the first occurs at the beginning …

A sequence of responses that occur when an organism is exposed to excessive heat. In humans, an increase in skin temperature triggers muscle relaxati…

Positively-charged atomic nuclei that have been stripped of their electrons. These particles have one or more units of electric charge and a mass exc…

Recurring supersecondary structures characterized by 20 amino acids folding into two alpha helices connected by a non-helical loop segment. They are …

The first DNA-binding protein motif to be recognized. Helix-turn-helix motifs were originally identified in bacterial proteins but have since been fo…

A phenomenon manifested by an agent or substance adhering to or being adsorbed on the surface of a red blood cell, as tuberculin can be adsorbed on r…

The aggregation of ERYTHROCYTES by AGGLUTININS, including antibodies, lectins, and viral proteins (HEMAGGLUTINATION, VIRAL).

Agglutination of ERYTHROCYTES by a virus.

The volume of packed RED BLOOD CELLS in a blood specimen. The volume is measured by centrifugation in a tube with graduated markings, or with automat…

The development and formation of various types of BLOOD CELLS. Hematopoiesis can take place in the BONE MARROW (medullary) or outside the bone marrow…

The formation and development of blood cells outside the BONE MARROW, as in the SPLEEN; LIVER; or LYMPH NODES.

An individual having only one allele at a given locus because of the loss of the other allele through a mutation (e.g., CHROMOSOME DELETION).

The movement and the forces involved in the movement of the blood through the CARDIOVASCULAR SYSTEM.

Plasmids controlling the synthesis of hemolysin by bacteria.

The deformation and flow behavior of BLOOD and its elements i.e., PLASMA; ERYTHROCYTES; WHITE BLOOD CELLS; and BLOOD PLATELETS.